You can have a “Christmas Tree” all year round with these Seated “Good Mornings” exercise by @ronzdabody. I love this exercise. (Note: A “Christmas Tree” refers to how the muscles in your lower back resemble a Christmas tree when shredded - see latest @d_stinto pic for example). Performed CORRECTLY, Seated Good Mornings are an excellent lower back exercise because they isolate the back, removing any assistance from the hamstrings & glutes